Windmill



(NO Model.) 2 Sheets-Sheet 2" .J. H. MILLER.

. WINDMILL' .No. 666,002. Patented Au 18, 1896.

UNITED STATES PATENT OFFICE.

JOHN H. MILIIER, OF BATAVIA, ILLINOIS, ASSIGNOR TO THE UNITED STATESWIND ENGINE AND PUMP COMPANY, OF SAME PLACE.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 566,002, dated August18, 1896. Application filed September 23,1891. Serial No. 406.600. (Nomodeh) T 0 all whom it may concern..-

Beit known that I, JOHN H. MILLER, a citizen of the United States,-residing at Batavia, in the county of Kane and State of Illinois, haveinvented a certain new and useful Im provement in YVindmills, which isfully set forth in the following specification, reference being had tothe accompanying drawings, in

which Figure 1 represents aside elevation of a portion of the windmill,showing my improvement. Fig. 2 is a side elevation, showing the top ofthe tower with the tail-vane removed, showing a side elevation of thepitman-wheel with the pitman attached thereto. Fig. 3 is a sideelevation of a part of the wind-wheel with the end of one of the arms ofthe windwheel attached. Fig. 4 is a detached view of a portion of twoends of the sail-brace rod and the channel-iron wind wheel arm or spokeand a flattened end of a head-brace rod. Fig. 5 is a side view of thesame pieces put together and bolted. Fig. 6 is a side view of the windwheel rim, showing how the inner ends of the sails are bolted thereto.Fig. 7 is a side elevation of a portion of the inner end of one of thesails, showing its form before-it is attached to the rim.

This invention was substantially embodied, in most of its features, inmy application for a patent, Serial No. 387,583, which application washeld to embody two inventions.

The features relating to the windmill con struction shown and claimed inthat application I embody herein, the purpose of this invention being toconstruct a metallic windwheel which can be easily constructed andreadily put together.

My invention consists in the construction and combination of the variousparts of a windmil1,hereinafter fully and specifically de scribed, andmade the subject-matter of the claims. 1

In the accompanying drawings, A represents the top portion of thewind-wheel tower, which may be constructed in any of the usual ways, theconstruction of the tower forming no part of my invention.

B is the ordinary casting that carries the wind-wheel and tail-vane, andturns on the turn-table on the top of the tower.

C is the pivoted tail-vane, which is pivoted to the casting B, asclearly shown in Fig. 1.

D is the wind-wheel shaft.

I do not specifically claim in this application the construction andcombination of a windmill of the above described graphite bearings, butembody the invention pertaining to this feature of my windmill inanother application for a patent, Serial No. 428,082.

I are spokes or arms of the win d-wheel, and they are made of channeledmetal, a crosssection of which is clearly shown in Figs. 4 and 5. Theyare secured in place by being bolted to the hub J.

K is a plate-metal rim, which is bent or flattened where it is fastenedto the arms or spokes I by means of bolts, as clearly shown in Fig. 3.

L are metal sails, the inner ends of which are notched out, as shown atM in Fig. 7.

These sails are curved and stand at an angle to the rim K, and arefastened to the rim K by placing the notch M on the rim and pass ing onepiece N of the end under the rim K and bending it upward, and the piece0 over the rim and bending it downward and bolting them to the rim, asclearly shown in Figs. 3 and 6. This makes a secure fastening for theends of the sails to the rim K, and sets the sails in a relative desiredposition to the rim K and wind-wheel.

P is a metal brace-rod bent into a curved form, which curve is adaptedto fit the back of the sails, as clearly shown in Fig. 3. The sails arefirmly secured to this brace-rod by bolts orin any other suitablemanner. The ends of the brace-rods P are shouldered and flattened, asclearly shown in Figs. at and 5, the flattened portion being the widthof the spoke or arm I of the wind-wheel, so that the said spoke will fitin the recess between the shoulders on the brace-rod P, thus formed onthe brace-rod P.

Q are head-braces of the wind-wheel. The outer ends of these head-bracesare flattened and are held secured to the spokes or arms of thewind-Wheel by the same boltwhich fastens the sail-braces to the spokesor arms of the wind-wheel, as clearly shown in Fig. 5. The inner end ofthe head-braces Q are bent at right angles, and they are secured to theadjustable head-block of the wind-wheel by a ring S, which has holesthrough it to receive the hooked or bent end of the brace-rods Q. Theunder side of the block R has recesses to receive the end of thebrace-rod Q next to the bent or hooked portion. The nuts T T hold thesetwo parts together and firmly secure the ends of the brace-rods inplace. By the adjustment of these nuts T the brace-rods can be tightenedor loosened, as desired.

U is an annular semicircular ring, securely attached to the face of thespokes or arms of the wind-wheel or to the spider-hub J, to which theinner ends of said hubs or spokes are secured. This construction isclearly shown in Fig. 1.

' Vis an annular brake-shoe, its bearing-surface being concave, asclearly shown in Fig. 1, to bear against the oval face of the ring U.The brake-shoe I preferably make somewhat less than a full circle forthe purpose of allowing any dirt or grit that might accumulate in theconcave face or bearing surface to escape therefrom. This brake-shoe hasconnecting-arms X, to which the lever Y is pivoted at a. The leverYispivoted to the windmill-casting B at b.

d is a rod, one end of which is pivoted to the lever Y, the other endbeing pivoted to the tail-vane of the windmill at 6.

When the wind blows with sufficient velocity to swing the solidwind-wheel around horizontally toward a plane parallel with thetail-vane, the connecting-rod (Z vibrates the lever Y, and forces thebrake-shoe V against the ring U on the sideof the wind-Wheel and checksits velocity. WVhen the wheel reaches nearly a plane parallel with thetail-vane, the force is sufficient to entirely stop the revolution ofthe wind-wheel. The wind-wheelshaft carries a pitman disk or wheel fwith the ordinary wrist-pin, to which the pitman is connected thatdrives the pump-rod.

In the drawings, g represents the pump-rod.

I do not claim in this application the construction of the pitman withits open bearings and means of adjusting the same, but have embodiedthis feature of my windmill in another application, Serial No. 428,083,

especially claiming the features of the pitman above described.

on is a crank-lever pivoted to the castingB at n, one end of which isconnected by a connecting-rod 0 to the tail-vane of the windmill, whilea rod or chain 13 extends from the other end of the crank-lever to thebottom of the windmill, to enable a person to turn the wind-wheel out ofor into wind, as desired.

q is a coiled spring, one end of which is held in place by a lug r onthe inner end of the tail-vane, while the other end of the bearing isheld in position in a similar manner by a projecting lug e on thewindmill-casting B, so arranged that when the wind-wheel swings out ofwind the tension of this spring will be increased, and its force will beexercised to swing it back to wind as the wind subsides, the spring alsoserving the purpose of ordinarily holding the wind-Wheel face to wind.

I find that I have a complete windmill, simple in its construction,durable,cheaply manufactured, and readily put together, althoughmetallic in all its parts.

Having fully described the construction and operation of my invention,what I claim, and desire to secure by Letters Patent, is-

l. In a windmill, the rim K; the spokes or arms I to which the rim K isconnected; and

the curved sails L having their inner ends notched at M, and having sideprojecting pieces N and O, the notch at M being as wide as the rim K andadapted to receive it, and the pieces N and 0 being bent over the rimand bolted thereto on the opposite side of the rim from the curvedsails, making a secure fastening of the sails to the rim.

2. In a wind-wheel, the rim K; the curved sails notched at their innerends and having projecting pieces N and 0, one bent over the tops of therim and the other under the rim and bolted to it; the brace-rod P bentto fit the curved sails, flattened and shouldered at their ends toreceive the arms I and the arms I, all as specified and shown.

JOHN H. MILLER.

W'itnesses:

T. W. Snow, 0. D. WALwoRrH.

